Evacuator



Sept- 29, `1`936- I w. c. GROENlGl-:R 2,055,490

EVACUATOR Filed Feb. 2, 1935 3 Sheets-Sheet 1 Hl TORNEY Sept. 29, 1936.w. C;- GROENIGER` 2,055,490

EVACUATOR Filed Feb. 2 1935 3 Sheets-Sheet 3 INVENTOR Wil iam Cflroe e?o3 Y Patented Sept. 29, 1936 UNTTED STATES PATENT OFFICE ApplicationFebruary 2, i935, Serial No. 4,620

10 Claims.

My present invention relates to evacuators.

Embodiments of my present invention, designated evacuators, possesscharacteristics of the general nature of half-syphon legs, that is tosay, function to form the posterior leg of a syphon, the anterior leg ofwhich is constituted of an upwardly extending passage with which myevacuator is connected, and serving therewith to discharge a defecator.l

Preferably, the anterior or upwardly extending passage is constituted ofan upwardly extending passage formation of the defecator, preferablyalso of the lateral outlet type, such asis disclosed in my co-pendingapplication Serial #733,259, iiled June th, 1934, and entitled Lateraloutlet defecator.

My invention may also be applicable to the type of lateral outletdefecator set forth and claimed in my co-pending application Serial#749,069, filed October 19th, 1934, and entitled Defecator.

The general characteristics of my evacuator,

embodying my present invention, reside in an uppermost portion arrangedto be detachably connected to the uppermost portion i. e., discharge ofan upwardly extending leg of a lateral outlet type of defecator or tothe uppermost portion i. e., discharge of an upwardly extending anteriorsyphon leg of a non-lateral outlet type of defecator. Such uppermostportion includes a Weir serving per se as or in conjunction with a, wallof the uppermost portion of the anterior syphon passage or leg, as adam.- The uppermost portion of the evacuator further includes a bulgedor elbow formation, whereby upon flow of the effluent discharged fromthe defecator, a portion of thev quantity of air originally in thebulged or elbow formation, is entrained, thereby giving rise tosub-atmospheric pressure of the retained air. My evacuator furtherincludes a downwardly extending central or other intermediate portion,the effective crosssectional area of which is less than that of theuppermost portion of the evacuator, thus providing for a relativelyrestricted cross-sectional area of the effluent flowing through suchintermediate portion. My evacuator preferably includes supplementalportions disposed lower relative toA its stated intermediate portion, anessential characteristic of which is that the effluent assumes the formof a flowing curtain and other therewith comparable formation serving topreclude the inflow of air through the lower or discharge opening of thedefecator during the r stage of syphonic discharge of the eilluent.

The lower or discharge end of my evacuator is connected with a soilpipe, or other suitable passage means, for affording the discharge ofthe effluent therein.

Further features andobjects of the invention will be more fully,understood from the following detail description and the accompanyingdrawings, in which 1 illustrates my evacuator in assembly with apreferred type of defecator, and is a vertical section taken on line I-Iof Fig. 2; Fig. 2 is a top plan view of the evacuator shown in Fig. 1.

Fig. 3 is a side elevation of Fig. 2.

Fig. 4 is avvertical section on line 4-4 of Fig. 5 and Fig. 5 is anelevation of another embodiment of evacuator, pursuant to my presentinvention. T

Fig. 6 is a sectional elevation on line 5 5 of Fig. 7 and Fig. '7 is anelevation of another embodiment of my invention.

Fig. 8 is a View similar to Fig. 1 illustrating an initial stage ofdischarge of the contents of the indicated defecator through myevacuator.

Fig. 9 is a similar view illustrating a later stage n of the discharge.Fig. 10 is a similar view showing a still later stage of the discharge.Fig. 11 is a similar view illustrating the stage of the breaking of Ythesyphonic action. Fig. 12 is a detail elevation on line I2-I2 of Fig. 8.

Referring to the embodiment shown in Figs. 1, 2 and 3, the type ofevacuator 40 comprises an uppermost or inlet portion 4I suitably securedwithin the discharge opening 20 of the defecator, such as the type ofdefecator I0 indicated in Fig. 1, and corresponding in construction tothe type of defecator described and claimed in my aforesaid co-pendingapplication Serial #749,069, entitled Defecator. Briefly, such defecatorcomprises in its essentials an 11p-flow, i. e., anterior syphon half-legI5, its inlet VI5a being disposed proximate the lowermost edge I8a ofthe inwardly disposed ledge I8 which extends downwardly toward the wellportion I2 of the bowl; preferably, the lowermost level I2a of thebottom of the wellV I2 is disposed interiorly of the opening I5a of theanterior syphon half-leg I5. The dam or Weir of the anterior syphonhalf-leg is indicated at I6, the eifective face of which issubstantially level, i. e., in alignmentwiththe lower face 4Ia of theinlet 4I of the evacuator 40.

For the purpose of fuller explanation of the showing ofv Fig. 1, theinow port of the water or other efuent is indicated at 23, leading tothe main water channel 22, thence through the port 3| leading to thechannel 30 for the supply of the main discharge jet (not shown) and forthe supply at a predetermined timeinterim to the rim jets 28. `Such bowlmay or may not be provided with a vortex effecting jet (not shown), alsosupplied from the main water channel 22. The afteriill I3 serves as theeffluent for receiving the solid, liquid and other matter to bedischarged from the defecator, the normal level I4 of such eluent beingdetermined by the vertical height of the dam or weir I6.

The type of evacuator shown in Figs. 1, 2 and 3, embodies arelatively'thick wall at its inlet 4I, the thickness of which isdetermined by the contour of the discharge opening 26 of the defecator.Such relatively thickened wall of the opening 4l is shown of solidformation.

The support of the defecator is preferably had independently of theconnection of the evacuator with the defecator, as by means of boltspassing through the upper portion of the rear wall of the defecator, i.e., on opposite sides of the ledge 24a at the rear of the upper face ofthe bowl.

A preferred form of mechanicailly securing the connection of the inletopening of the evacuator 4l! relative to the discharge opening of thedefecator is set forth and claimed in my co-pending application Serial#48,860 led Nov. 8th, 1935, entitled Plumbing connection.

The opening of the inlet 4l leads to the upper section extendingdirectly from the inlet 4l horivZontally and communicating directly withthe upper elbow section 42 of the evacuator, the

Vlower end of which communicates with a downwardly extendingcross-sectional slightly restricted section 43, thence to the lowerlydisposed eflluent-curtain-forming section 44. The outtake section 45 isadapted to be connected in any suitable manner to a Y-tting or otherlaterally opening fitting leading to a soil pipe, waste pipe, etc. Asappears from Figs. 2 Yand 3, the evacuator desirably has a general Zformation, to most effectually attain the above stated functions of therespective sections of the evacuaton'also a predetermined length oftravel, improved manner of connection of the outtake section with the Yor other laterally opening fitting, etc.

As appears from Fig. 2, the type of evacuator is of the 45 angle, butmay b e of a 90 angle, zero angle or Yany intermediate angle, as pre-4ferred.

v Thev type of .evacuator shown in Figs. 4 and 5 corresponds inessentials to the type shown in Figs. 1, 2 and 3, and like parts aredesignated by like referencev characters. It will be noted that theevacuator sho-wn in Figs. 4 and 5 is of the zero' angle type.

vThe evacuator shown in Figs. 4 and 5 illustrates in particular theformation of the wall of the evacuator .of substantially uniformthickness, the enlarged'diameter at its intake 4I being had byfan' outerannular thimble Mb, 'secured at its reduced end 4lc to the exterior ofthe wall of the intake 4I by welding, brazing, etc.v Its outtake wallformation 45 may be had by a separate member secured at its reduced end45a, to the juxtaposed end of the vsection 44, as byV welding, brazing,etc.

The evacuator shown in Figs. 6 and 7, is of the 90 angle type, and itsparts corresponding to the parts of the evacuator shown in Figs. l, 2and 3 Y are designated by like reference characters.

My evacuator of the type shown in Figs. 4 and 5 may be made of sheetmetal suitably contoured in the drawing operations of the same.

lIfhe'type of evacuator shown in Figs. 6 and '7 may be cast. c'

Figs.. 8 through 12 illustrate a typical manner of operation of myevacuator. 'In Fig. 8 isdepicted the initial stage induced primarilybythe main discharge jet of .the Vdischarge of `the effluent `I3 fromthe defecator I0 upwardly through the anterior syphon half-leg I 5, theportion of the eifluent within the bowl proper being preferablysubjected to a vortical movement, say in counter-clockwise direction asviewed from above. Under such or equivalent condition the mean verticalheight of the eflluent within the bowl proper is maintainedsubstantially at the level I4, compare with Fig. l, the peripheralportion of the effluent being elevated by reason of the centrifugalforce imparted thereto by the vortical movement, the central portion ofthe effluent within the bowl proper being relatively depressed, thuscreating, inter alia, a positive force radially inwardly toward suchcentral and depressed portion of the effluent upon floating andsemi-floating manner and in a direction downwardly toward the inlet laof the anterior, i. e., upwardly directed syphon half-leg l5. Suchinitial movement effects a rise of the effluent above and over the weiri6 and the lower wall portion 4|a of the uppermost section of theevacuator 40, whereby the effluent passes over the ledge 4ld, see alsoFig.'12, the effluent upon flowing thereover forming a curtain 46flowing over and in cooperation with the downwardly extending wall 41 ofthe intermediate section of the evacuator 4l), ultimately reaching thelowermost section 44. Such curtain-like formation 46 of the eluent andits downward flow entrains air originally at atmospheric pressure `inthe upper bulged or elbow section 42, and as appears hereinafter, thecontinuance of such curtain-like flow entrains more and more of thestated air and thus more and more reduces its Volume and correspondinglyreduces the pressure of the air remaining in such bulged or elbowsection 42 to lower and lower sub-atmospheric pressure values.

Fig. 9 illustrates a later stage of the ow of the eiuent, whereat thecross-sectional area of the curtain-like formation 46 is increased,accompanied by increased entrainment of the stated air in the region 42,as above referred to. As is observed from Fig. 8, initially a pool 44aof the effluent is formed within the section 44, which advantageously isof a flat dish-like formation, such pool 44a co-acting with thecurtainlike formation of the eiuent to form a seal against the entry ofairV through the section 45 in a direction counter to that ofthe flow ofthe effluent, which otherwise would retard or break the syphonic action.

Fig. 10 illustrates the status of the discharge of the eliiuent throughmy evacuator at a stage of substantially full discharge, thecurtain-like formation 46 of the effluent substantially completelyfilling the intermediate section 43 of the evacuator.

As referred to above, the cross-sectional area of the intermediate orcentral section 43 of my evacuator 46 is preferably less than that ofupwardly disposed sections,v whereby a predetermined relative reductionof .the rate of travel of the effluent is brought about, thus effectingand maintaining a substantially complete filling by the eilluent at theregion adjacent the ledge portion 4|d and the greater part of the volumeof the bulged or elbow portion 42, such action serving to increase therate of entrainment of the air within the stated bulged or elbow portion42. At the stage illustrated in Fig. 10, i. e.,

of substantially full syphonic action, the contents h of the bowl areeffectually discharged therefrom through my evacuator. It will beobserved that throughout the respective stages typified in Fig. 8, inFig. 9 and in Fig. l0, the entry of air through the effluent outtake 45in a direction counter to that of the flow of the eiuent, is whollyprecluded.

Thedischarge of the eiluent from the bowl proper, succeeding the stageindicated in Fig. 10, continues until the level Ma, see Fig. 1l, of theeffluent I3 within the ,bowl proper subsides below the lower edge Illaof the ledge I8 disposed inwardly` of the bowl proper, at which stageair from the interior of the bowl proper enters in the directionindicated by the arrows 48, thus breaking the syphonic action, followedby consequentV subsiding of the eiiiuent in the region of the dam I6 andledge 4 Id, accompanied by a partial return ow of the eflluent thenwithin the anterior syphon up-flow leg I5, which comminglesrwith theeffluent supplied through the rim openings 28 to form the afterflow,preparatory for a subsequent operation of the defecator.

In the type of evacuator shown in Figs. 8 through l1 as also inthe typeshown in Figs. l, 2 and 3, the wall portionfi'i of the central orintermediate section 40 may be of nat-wise formation, to enhance theadherence thereto of. the curtainlike formation 46 of lthe ,eluent Suchenhanced action may also be attained bycontouring the intermediateportion of the defecator re-entrantly, as is indicated in Fig'. 4; thesection of minimum cross-sectional area indicated at i3d, of the typeshown in Figs. 4 and 5 is disposed more lowerly as compared with thetype of evacuator shown in Figs. 8, 9, l() and 11andlikewise withrespect to the type illustrated in Figs. i, 2 and 3.

The type shown in Figs. 6 and 7, attains such enhanced operation of the`curtain-like formation 46 of eiliuent by means of a substantiallyrectilinearly extending intermediate sectionv 43 which also tilts withrespect to the vertical.

As is observed from the drawings, in particular Figs. 7 and 12, thecross-section of the horizontally extending upper portion of. myevacuator is advantageously of elliptical cross-section, a relativel-yflat face of such elliptical cross-section coinciding with thehorizontal fiat Weir or dam' I 6 of the syphon up-flow leg, thusaffording free entry of the effluent into and through the horizontalupper section of my evacuator and attendant increased flow of theeffluent into and through the downwardly extending elbow d2, accompaniedby the formation of the curtain at the ledge Md, and correspondinglythrough the subsequent coacting flow phases, referred to hereinabove.

From the above, it appears that embodiments of my invention effect theflow of the eflluent to form water dams and curtains at sequentiallyrelated locations, positively created and maintained by the constructionand relative arrangement of the respective sectional parts of myevacuator, the passage of the effluent into and through my evacuatorbeing at all times unobstructed as to the flow of the leffluent-thus inmarked superiority over the prior art water-plug principle-but at allstages of the forming and existence of the syphonic action the flow ofair into the interior of the evacuator is positively precluded by thestated water dams and curtains.

Whereas I have described my invention by ref.- erence to specific formsthereof, it will be understood that many changes and modications may bemade without departing from the spirit of the invention.

I claim:

l. As an article of manufacture, a posterior` syphon half-leg providedwith intake and outtake openings, comprising an upper sectioncommunicating directly with the intake opening and extending whollyhorizontally therefrom, an up- Dei' elbow section communicating directlywith upper horizontally extending section, said elbow section being ofrelatively large cross-sec tional area, said article further comprisinga lower downwardly extending section of relatively lessercross-sectional area, the walls of said article being imperforatebetween its intake and outtake openings.

2. As an article of manufacture, a posterior syphon half-leg providedwith intake and outtake openings, comprising an upper sectioncommunicating directly with theintake opening and extending who-ilyhorizontally therefrom, an upper elbow section communicating directlywith said upper horizontally extending section, said elbow section beingof relatively large cross-sectional area, said article furthercomprising a lower section of. relatively lesser cross-sectional areaextending downwardly in mean direction at an angle to the vertical,thewalls of saidarticle being imperforate between its intake and`outtake openings.

3.,As an article of manufacture, a posterior syphon half-leg providedwith intake andeuttake openings, comprising an upper sectioncommunicating directly with the intake opening and extending whollyhorizontally therefrom, an upper elbow section communicating directlywith said upper horizontally extending section, said A elbow sectionbeing of relatively large cross-sectional area, said article furthercomprising a lower downwardly extending section of relatively lessercross-sectional area, said article further comprising a lowermostsection extending horizontally, the walls of said article beingimperiorate between its intake and outtake openings.

4. As an article of manufacture, a posterior syphon half-leg providedwith intake and outtake openings, comprising an upper sectioncommunicating directly with the intake opening and extending whollyhorizontally therefrom, an upper elbow section communicating directlywith said upper horizontally extending section, said elbow section beingof relatively large cross-sectional area, said article furthercomprising a low-er section of relatively lesser cross-sectional areaextending downwardly in mean direction at an angle to the vertical, saidarticle further comprising a lowermost section extending horizontally,the walls of said article being imperforate between its intake andouttake openings.

5. As an article of manufacture, a posterior syphon half-leg providedwith intake and outtake openings, comprising an upper sectioncommunicating directly with the intake opening and extending whollyhorizontally therefrom, an upper elbow section communicating directlywith said upper horizontally extending section, said elbow section beingof relatively large cross-sectional area, said article furthercomprising a lower downwardly extending section of relatively lessercross-sectional area, said lower section including a portion having aflat wall formation, the walls of said article being imperforate betweenits intake and outtake openings.

6. As an article of manufacture, a posterior syphon half-leg providedwith intake and outtake openings, comprising an upper sectioncommunieating directly with the intake opening and ex- F tending whollyhorizontally therefrom, an upper elbow section communicating directlywith said upper horizontally extending section, said elbow section beingof relatively large cross-sectional area, said article furthercomprising a lower Cio Cil

downwardly extending section of relatively lesser cross-sectional area,said lower section including a portion having a flat wall formation,said article further comprising a lowermost section extendinghorizontally, the walls of said article being imperforate between itsintake and outtake openings.

'7. As an article of manufacture, a posterior syphon half-leg providedwith intake and outtake openings, comprising an upper sectioncommunicating directly with the intake opening and eX- tending whollyhorizontally therefrom, an upper elbow section communicating directlywith said upper horizontally extending section, said elbow sectionbeingof relatively large cross-sectional area, said article furthercomprising a lower downwardly'extending section of relatively lessercross-sectional area, said article further comprising a lowermostsection extending horizontally, said lowermost section having adish-like lower wall formation, the walls of said article beingimperforate between its intake and outtake openings. Y 8. As an articleof manufacture, a posterior syphon half -leg provided with intake andouttake openings, comprising an upper section communicating directlywith the intake opening and extending wholly horizontally therefrom, anupper elbow section communicating directly with said upper horizontallyextending section, said elbow section being of Hrelatively largecross-sectional area, said article further comprising a lower downwardlyextending section of relatively lesser cross-sectional area, said lowersection including a portion having a at wall formation, said lowermostsection having a dish-like lower wall formation, the walls of saidarticle being imperforate between its intake and outtake openings.

9. As an article of manufacture, a posterior syphon half-leg providedwith intake and outtake openings, comprising an upper sectioncommunicating directly with the intake opening and extending whollyhorizontally therefrom, an upper elbow section communicating directlywith said upper horizontally extending section, said elbow section beingof relatively large cross-sectional area, said article furthercomprising a lower section of relatively lesser cross-sectional areaextending downwardly in mean direction at an angle to the vertical, saidlower section including a portion having a flat wall formation, thewalls of said article being imperforate between its intake and outtakeopenings.

l0. As an article of manufacture, syphon half-leg provided with intakeand outtake openings, comprising an upper section communicating directlywith the intake opening and extending wholly horizontally therefrom, anupper elbow section communicating directly with said upper horizontallyextending section, said elbow section being of relatively largecross-sectional area, said article further comprising a lower section ofrelatively lesser cross-sectional area extending downwardly in meandirection at an angle to the vertical, said article further comprising alowermost section extending horizontally, said lower section including aportion having a flat wall formation, said lowermost section having adish-like lower wall formation, the walls of said article beingimperforate between its intake and outtake openings.

WILLIAM C. GROENIGER.

a posteriorv

